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CEN
EN ISO 16664:2017

EN ISO 16664:2017

Current

Current

The latest, up-to-date edition.

Gas analysis - Handling of calibration gases and gas mixtures - Guidelines (ISO 16664:2017)

Published date

14-06-2017

Publisher

Comite Europeen de Normalisation

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Transport and storage
5 Mode of withdrawal
6 Transfer system
7 Stability
Annex A (informative) - Check on the stability of calibration
        gas mixtures by end-users
Bibliography

ISO 16664:2017 describes factors that may influence the composition of pure gases and homogeneous gas mixtures used for calibration purposes. This document only applies to gases or gas mixtures that are within the "utilization period". It provides the following guidelines for the handling and use of calibration gas mixtures:- storage of calibration gas cylinders;- calibration gas withdrawal from cylinders;- transfer of calibration gas from cylinders to the point of calibration.It also outlines a method of assessing the stability of a gas mixture, taking into account the gas composition uncertainty given on the certificate and the user's measurement uncertainty.

Committee
CEN/TC 238
DocumentType
Standard
PublisherName
Comite Europeen de Normalisation
Status
Current

BS EN 61207-1:2010 Expression of performance of gas analyzers General
EN 61207-1:2010 Expression of performance of gas analyzers - Part 1: General

ISO/IEC 17025:2005 General requirements for the competence of testing and calibration laboratories
CGA HB : 2013 HANDBOOK OF COMPRESSED GASES
ISO Guide 35:2017 Reference materials Guidance for characterization and assessment of homogeneity and stability
ISO/IEC Guide 99:2007 International vocabulary of metrology Basic and general concepts and associated terms (VIM)
ISO 472:2013 Plastics Vocabulary
ISO 7504:2015 Gas analysis Vocabulary
ISO 6142-1:2015 Gas analysis Preparation of calibration gas mixtures Part 1: Gravimetric method for Class I mixtures
VDI 3490 Blatt 3:1980-12 Measurement of gases; specifications for transfer of calibration gas mixtures
ISO/IEC Guide 98-3:2008 Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995)

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